An interesting piece that highlights all the main issues.
The age factor is a big one, with few real stand-out young Russian players coming through. Dzagoev is the obvious one, but soemtimes he seems to disappear from games or get muscled off the ball too easily.
As the Russian league becomes more international, there are fewer young Russian players getting a look-in at the big clubs. A few years ago Arshavin, Kerzhakov, Malfeev, Denisov and Bystrov (also a Russian international) all cut their teeth at Zenit when far from the finished product - how many of these players as youngsters would make the side regularly now? One of them, I think. The rest would be on loan at Kuban' or Spartak Nalchik.
There can, I don't think, be any excuse for how knackered the players seemed in the second half against Poland and Greece. It reminded me of watching an old Brazil side where they slowed the pace right down then produced a killer pass or bit of skill - though of course Russia didn't do the latter.
It seems Russia will be appointing a Russian manager as Advocaat's replacement in the near future: Valery Gazzaev or Gadzhi Gadzhiev, perhaps. As well as being good, experienced coaches, either of these will be able to produce a motivating Russian-language half-time team talk with the side 1-0 down in a crucial game...